3M 7000128240 is a half facepiece reusable mask designed for protection against mold and silica hazards. It is not compatible with 3M PAPR or Supplied Air Systems but does offer enhanced comfort with a silicone faceseal and cool flow exhalation valve. The mask is made with durable silicone and features a drop-down feature for added convenience. With a 10 assigned protection factor, this mask provides gas and vapor protection against various substances. Weighing only 0.37 lbs, this large-sized mask is lightweight and includes a 4-point harness for a secure fit. Spare parts are available for replacement if needed.